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HelpOrder Name FLDLD LDL Cholesterol, Direct
Method Name
Quantitative Detergent Solubilization/Enzymatic
Reporting Name
LDL Cholesterol, DirectSpecimen Type
SerumSpecimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Specimen Volume: 1.0 mL
Collection Instructions:
1. Draw blood in a serum gel tube(s), plain red-top tube is also acceptable.
2. Centrifuge and aliquot 1.0 mL of serum into a plastic vial.
3. Send refrigerate.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Refrigerated (preferred) | 7 days |
| Frozen | 365 days |
Reference Values
0-19 years:
Desirable: 109 mg/dL or less
Borderline: 110-129 mg/dL
Higher risk: 130 mg/dL or greater
20 years and older:
Desirable: 129 mg/dL or less (99 mg/dL or less if patient has CHD)
Borderline: 130-159 mg/dL
Higher risk: 160 mg/dL or greater
Day(s) Performed
Sunday through Saturday
Report Available
1 to 5 daysPerforming Laboratory
ARUP LaboratoriesCPT Code Information
83721
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FLDLD | LDL Cholesterol, Direct | 18262-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| FLDLD | LDL Cholesterol, Direct | 18262-6 |